Furnace joint



feb. 24 1925. l 152mm 1 FREE-IE3 FURNACE JOINT Filed N611 22,

I N VEN TOR.

Pm iea seem, 1925.

omens same:

@TWNIAHYD A. FEE-E3317, GE 1110151131 E, XLLINUIQ.

FUR I'IAQE SILENT.

" ooplieotioa filer! November To allbeiwm 2'3 may; amwem; Be it known that EDWARD-A Fame, a

citizen of the Unitec i States, residing at Moline, in the county of Rock Island enrl' State of Illinois, has inveoled certain new and useful Improvements in Furnace Joini-s, of which the following is speeiiiestion.

My invention relates to improvm'oemts in furnace joinns for hot oil furnaces and simi lar structures. 1

The objects of my inveneion are:

' 1. To provide means which will allow fox expansion and oonizreomioo of the different sections of a, fumeee wii'lzout injury so the joints thereof.

2.' To provide means which will automatically seal the joints 05a fi'imaoe again-sf; leakage due to contraction and expansion or loosening of the joini: from other sense.

3. To provide a flu-mice joint which will expand and contract: without injuring oiloosening. the cement filling therein.

I aetein these objects by the mechanism illustrated in the accompanying drawing, in which is shown a pei'spoctive view in section of a portion of a furnace Well containing my joint and portions of an upper and. lower section of a furnace, 1 and 2, respectively secured together by a. layer of oement, 3,

In constructing :my joint, I carefully smooth elf by grinding or otherwise one of the surfaoes to loo joined, preferably the lower surface 1 of the upper section. I leave the upper surface 2 of the other section in its natural rough state. as east. Then I place a layer or-coeting' of cement upon the roughenecl surfeoe, spreading" it mite fully and evenly and pressing 1t thereon with considerable force so as to roe-life the cement enter all the irregularities in the surface. I then. mount e'ho smooth edge of the upper section upon. the cementeei eolge of the adjacent section.- I

Adjacent the upper edge of the lower some tion, I provide channel. or tree l1, 6, which is formed-by a projecting boo, or Kim, 5, secured to or formed integral with the see tion, 2. Affair the upper sect-ion hoe been seated upon the lower one as showii, ll fill this trough or channel. 3, with a, flfill'lil; 4, or other suitable i'oelmrial. The meleriel used for filling'tlie channel, 6, slioolrl. be a material which will not coke and. which is sufficiently fine grained to prevent the of gases through ike two .0 1 "me roughened surfs 2e eml break 255, 1923. Serial ll'o. ewe-5:7.

After a, furnace sei; u} will: the joioie foi'meol as stated, the g reeeer adherence of the oement to flue roughenei eurieee of one of the ,eetions will mouse ii; to adhere more strongly to that surieoe than it will adhere to elle snmotnly ground s! e of elm mi jeoozzt'seetio o, The result Vrli adjacent sections expand or oot unevenly the oeiont will adhere to away from .i. e not tear or break op or slide upon the smoothed s "nootlierl surface will tliocement e PO11 eneel surface woulel 111* will tonal lo 'ov the cement to" e inwardly or outwaiwlly upon. Wlili 'fify iliiiiifi injury.

In. easeof uneven errgzceusion of the jeconi sessions, the yielding nature of the send, i in the channel. 6, ill oilow ii; to bulge upwardly anti Wheneve'v Jlze eeetions resmno their normal relative posiio'o by wontmciion, the force of gravity will cause the semi; to resume its normal position in the olmnnel or trough, 6.

If ciesirerl, light coating of graphite, @UlVGliZE'Il mice or other suitable material, may be sprinkled in the channel; 6, before the send is placed therein. and. likewise, to "very light coating of graphite, pulverizerl. mice or other suitable mete/rial, may be op plied to the smooth, lower surface of the uppei? section, if desired 'iiefoi'e laeing geeaieel upon the eemeofie mop-e1" surface 0 the lower section, to wet, iii the mouse oi e lolWi- :md assist in. pe'm'aiifoingr the 'i'elafiive x'novem'exit due e contraction le -re golnee 'Wifiwlfl; Mei-along up or infioviieo; fi'ie eeroeo'fi Ellen Having rleeoribedflly inveniio'o, I claim: 1. In a furnacejoint, the eoi'nliinetion "with e section leaving :1 rough :ieoe; of e see-- i be limb in 'izion moimitoilmljeeent thei'eto having" e smooth face eml a filler inseried between lilo rough and smooth feces eml seomel to time rough face, and. a trough united with the lower section surrounding the furnace adjacent the joint we filled with non- 00m lmstible granular mgtter.

3. In e furnace joint, the eombinetion with o seetion lowing a rough. face, of a sew "jacentthe joint and fiiied with sand.

tion -mounted adjacent thereto having a :nmooth face and a filler inserted between the the 4. A furnace jointcompri section having a rough face and a section hevi a,

sineothlace mountev. sogecent thereto and a I filler ins rted between the rough and smooth faces and secured-to the rough. time,

5. A; ifnrnaee joint comprising adjacent sections i'nounted with a filler of cement be tween adjacent edgesthereof and a trough united to the lower section surrounding the joint and tilled with sand.

A, furnace joint comprising adjacent sections inonnted with a filler of cement between adjacent edges thereof and a tron h united to the lower section surrounding; the

joint and filled with a non-combustible, granular materiel,

T. A furnace 'joint comprising a lower Section with an upper section seated thereon, with a filler of cement between them and a trough united to the lower section surrounding the joint and filled with sand, and means for allowing expansion and contraction without disturbing the cement filler.

8. A. furnace joint comprising a lower se. on, with a filler of cement between them and a trough united to the lower section surrounding the joint and filled with a noncombustible, granular material, and means for allowing expansion and contraction without distuz-rhing the cement filler.

In testimony whereof he afiixes his signature.

EDWARD A. FREED.

on with. an upper section seated there-- 

